Always isolate with AQ here?

[DP388]

I think I always tend to isolate a SS push and I wonder if that is short-sided thinking. Is isolation always correct?

In this hand, the SB is gank. I don't know a ton about his play but I know he's got me outchipped here. I also know he will play more than his cards. Button is unknown.

Poker Stars
No Limit Holdem Tournament
Blinds: t800/t1600
(Ante: t75)
9 players

Stack sizes:
UTG: t32105
UTG+1: t26649
MP1: t17590
MP2: t8140
MP3: t21804
Hero: t47315
Button: t48842
SB: t69217
BB: t10587

Pre-flop: (9 players) Hero is CO with A[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/spade.gif[/img]
3 folds, <font color="#cc0000">MP2 raises all-in t8065</font>, MP3 folds,

Hero?

I think my choices are more than just push/fold, but curious to see other lines of thinking.

Also, if I flat call does he raise with a range that beats the SS push and gets me to fold a better hand?